The potential of a laser-generated plasma method in the analysis of coating coverage, coatweight distribution, and 3D distribution of various pigments of paper coating is described. A XeCl-excimer laser (308 nm) was used to generate microscopic plasma from the paper coating, and delayed detection of silicon and calcium atomic emission line intensities was used as a measure of mass vaporized. Macroscopic areas typically 10 × 10 mm2 at a spatial resolution of 250 μm were studied. With a single laser pulse (0.2 mJ of energy), about 2 ng of coating from a volume of 30 μm in diameter and 2 μm in depth was vaporized. The method seems to be useful for characterization of multilayer coatings.
PiepmeierE. H., “Laser Ablation for Atomic Spectroscopy”, in Analytical Applications of Lasers, PiepmeirE. H., Ed. (John Wiley & Sons, New York, 1986), Chap. 19, p. 627.
4.
ScottR. H. and StrasheimA., in Applied Atomic Spectroscopy, GroveE. L., Ed. (Plenum Press, New York, 1978), Vol. 1.
5.
CremersD. A. and RadziemskiL. J., in Laser Spectroscopy and Its Application, RadziemskiL. J. and SolarzR. W, and PaisnerJ. A., Eds. (Marcel Dekker, New York, 1987).
6.
AllemandC. D., Spectrochim. Acta27B, 185 (1973).
7.
GrantK. J. and PaulG. L, and O'NeillJ. A., Appl. Spectrosc.44, 1711 (1990).
8.
GrantK. J. and PaulG. L, and O'NeillJ. A., Appl. Spectrosc.45, 701 (1991).
9.
BrowningB. L., in Analysis of Paper (Marcel Dekker, New York, 1977), 2nd ed., p. 111.
10.
KentH. J.ClimpsonN. A.CoggonL. and HooperJ. J, and GaneP. A. C., Tappi Coating Conference, Washington, D.C. (May 4–7, 1986), proceedings, pp. 103–112.
11.
KartovaaraI., Paperi ja Puu71, 1033 (1989).
12.
TomimasuH.SuzukiK. and OguraT, and LunerP., Tappi J.73, 179 (1990).
13.
VoillotC.GravierM. and RamazA, and ChaixJ. M., Tappi J.73, 109 (1990).
14.
HäkkänenH. J. and Korppi-TommolaJ. E. I., Appl. Spectrosc.47, 2122 (1993).
